Home / 19,937.49-29,912.38-7,458.77

Finding the Fourth Proportional to 19,937.49, 29,912.38 and 7,458.77

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Solution

The fourth proportional to 19,937.49, 29,912.38 and 7,458.77 is: 11,190.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,937.49 : 29,912.38 = 7,458.77 : x
  2. Step 2: Convert to fraction form
    19,937.49/29,912.38 = 7,458.77/x
  3. Step 3: Cross multiply
    19,937.49x = 29,912.38 × 7,458.77
  4. Step 4: Simplify right side
    19,937.49x = 223,109,618.71
  5. Step 5: Solve for x
    x = 223,109,618.71/19,937.49
  6. Step 6: Final answer
    x = 11,190.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.